tooltipwnd.cpp

这是采用mfc编写的工资管理系统

// ToolTipWnd.cpp: implementation of the CToolTipWnd class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "SalaryManagement.h"
#include "ToolTipWnd.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

/////////////////////////////////////////////////////////////////////////////
// CToolTipWnd

CToolTipWnd::CToolTipWnd()
{

 lpWndCls = AfxRegisterWndClass(0);
 
 //Defaults
 m_bMouseIn = false;
 m_bStuck = false;
 
 m_iWidth = 100;
 m_iHeight = 60;

 m_clrBkColor = RGB(249,254,188); //light yellow
 m_clrFrameColor = RGB(0,0,255);  //blue
 m_clrTextColor = RGB(0,0,0);  //black

 m_iFontHeight = 14;
 m_strFontName = "Arial";

 pCurrwnd = NULL;
}

CToolTipWnd::~CToolTipWnd()
{

 BTOOLINFO *stToolInfo;
 CWnd *pWnd;
 for(POSITION pos = m_ToolPtr.GetStartPosition(); pos != NULL;)
 {
  m_ToolPtr.GetNextAssoc(pos, (void *&)pWnd, (void*&) stToolInfo);
  delete stToolInfo;
 }
 m_ToolPtr.RemoveAll();

}


BEGIN_MESSAGE_MAP(CToolTipWnd, CWnd)
 //{{AFX_MSG_MAP(CToolTipWnd)
 ON_WM_PAINT()
 ON_WM_CREATE()
 //}}AFX_MSG_MAP
END_MESSAGE_MAP()


/////////////////////////////////////////////////////////////////////////////
// CToolTipWnd message handlers
BOOL CToolTipWnd::Create(CWnd* pParentWnd) 
{

 BOOL bRet = CWnd::CreateEx(NULL, lpWndCls, NULL,
  WS_POPUP, 0, 0, m_iWidth, m_iHeight,
  pParentWnd->GetSafeHwnd(), NULL, NULL);

 m_hParentWnd = pParentWnd->GetSafeHwnd();
 
 if(bRet)
  SetOwner(pParentWnd);

 return bRet;

}

void CToolTipWnd::OnPaint() 
{
 CPaintDC dc(this); // device context for painting
 
 CRect rectCl;
 GetClientRect(&rectCl);

 CRgn rgnComb; 
 rgnComb.CreateRectRgn(rectCl.left+10,rectCl.top,rectCl.right,rectCl.bottom);

 int iRetComb = rgnComb.CombineRgn(&rgnTri, &rgn, RGN_OR);
 if(iRetComb==ERROR)
 {
  AfxMessageBox("ERROR in Combining Region");
  return;
 }

 CBrush pBrush;
 pBrush.CreateSolidBrush(m_clrFrameColor);
 
 CBrush pBrush1;
 pBrush1.CreateSolidBrush(m_clrBkColor);
 
 dc.FillRgn( &rgnComb, &pBrush1);
 dc.FrameRgn(&rgnComb, &pBrush, 2, 1);

 dc.SetBkMode(TRANSPARENT);
 dc.SetTextColor(m_clrTextColor);
 
 CFont *pFont = dc.SelectObject(&m_fontText);
 //dc.Rectangle(&m_RectText);

 CSize czTextWidth = dc.GetTextExtent(m_strText);
 
 if( czTextWidth.cx < m_RectText.Width())
  dc.DrawText(m_strText, m_RectText, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
 else
  dc.DrawText(m_strText, m_RectText, DT_CENTER | DT_WORDBREAK);
 
 

 dc.SelectObject(pFont);
 
}


int CToolTipWnd::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
 if (CWnd::OnCreate(lpCreateStruct) == -1)
  return -1;
 
 CRect rectCl;
 GetClientRect(&rectCl);

 int x=0, y=0;
 CRect rectTemp;

 rectTemp = rectCl;
 rectTemp.left = rectTemp.left + 10;
 
 x = (int)( (float)((float)rectTemp.Width() / 2.0) / 1.41421);
 y = (int)( (float)((float)rectTemp.Height() / 2.0) / 1.41421);

 m_RectText.top = ( (rectTemp.Height() / 2) - y);
 m_RectText.left = ( (rectTemp.Width() / 2) - x) + 10;
 m_RectText.right = ( (rectTemp.Width() / 2) + x) + 10;
 m_RectText.bottom = ( (rectTemp.Height() / 2) + y);

 rgn.m_hObject = NULL;
 rgnTri.m_hObject = NULL;
 rgnComb.m_hObject = NULL;

 BOOL bRegRet = rgn.CreateEllipticRgn(rectCl.left+10,rectCl.top,rectCl.right,rectCl.bottom);
  
 CPoint ptTri[3];
 ptTri[0].x = rectCl.left;
 ptTri[0].y = (rectCl.bottom / 2) - 10;

 ptTri[1].x = rectCl.left + 15;
 ptTri[1].y = (rectCl.bottom / 2) - 5;

 ptTri[2].x = rectCl.left + 15;
 ptTri[2].y = (rectCl.bottom / 2) + 5;
 
 ptTri[3].x = rectCl.left;
 ptTri[3].y = (rectCl.bottom / 2) - 10;

 BOOL bRegTriRet = rgnTri.CreatePolygonRgn(ptTri, 3, ALTERNATE);

 rgnComb.CreateRectRgn(rectCl.left+10,rectCl.top,rectCl.right,rectCl.bottom);
 int iRetComb = rgnComb.CombineRgn(&rgnTri, &rgn, RGN_OR);

 if(iRetComb == ERROR)
 {
  AfxMessageBox("ERROR in Combining Region");
  return -1;
 }

 int bRgnWnd = SetWindowRgn(rgnComb.operator HRGN( ), TRUE); 

 m_fontText.CreateFont(m_iFontHeight, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,m_strFontName); 
 
 return 0;
}

void CToolTipWnd::RelayEvent(LPMSG lpMsg)
{

 switch(lpMsg->message) 
 {
 case WM_KEYDOWN:
   if(IsWindowVisible())
   {  
    ShowWindow(SW_HIDE);
   }
   break;

 case WM_LBUTTONDOWN:
 case WM_RBUTTONDOWN:
   if(IsWindowVisible())
   {
    ShowWindow(SW_HIDE);
   }
   break;

 case WM_MOUSEMOVE:
  {
   CWnd *pFocusWnd = AfxGetApp()->m_pMainWnd->GetFocus();
   if(pFocusWnd==NULL)
    break;
   CWnd* pWnd = CWnd::FromHandle(lpMsg->hwnd);

   HWND hWndTemp = ::GetParent(lpMsg->hwnd);
   
   CPoint pt;
   pt.x = lpMsg->pt.x;
   pt.y = lpMsg->pt.y;
   
   BTOOLINFO *stToolInfo;
   CWnd *pBToolWnd;
   
   for(POSITION pos = m_ToolPtr.GetStartPosition(); pos != NULL;)
   {
    m_ToolPtr.GetNextAssoc(pos, (void *&)pBToolWnd, (void*&) stToolInfo);
    
    if(!m_bMouseIn)
    {
     if(lpMsg->hwnd == stToolInfo->hwndTool)
     {
     
      if(m_bStuck && IsWindowVisible())
      {
       SetWindowPos(&wndTop,pt.x,pt.y,m_iWidth,m_iHeight,SWP_NOACTIVATE);
       ShowWindow(SW_SHOWNOACTIVATE);
      }

      m_bMouseIn = true;
      m_clrTextColor = stToolInfo->clrToolTextClr; 
      m_strText = stToolInfo->strToolText; 
      
      SetWindowPos(&wndTop,pt.x,pt.y,m_iWidth,m_iHeight,SWP_NOACTIVATE);
      ShowWindow(SW_SHOWNOACTIVATE);
      
      pCurrwnd = stToolInfo->hwndTool;

      break;
     }
    }
    else
    {
     CRect rect;
     ::GetWindowRect(pCurrwnd, &rect);
     if(m_bStuck && IsWindowVisible())
     {
      SetWindowPos(&wndTop,pt.x,pt.y,m_iWidth,m_iHeight,SWP_NOACTIVATE);
      ShowWindow(SW_SHOWNOACTIVATE);
     }
     
     
     CWnd* pWnd = CWnd::FromHandle(lpMsg->hwnd);
     CWnd *WndPt = pWnd->WindowFromPoint(lpMsg->pt);
     if(WndPt->GetSafeHwnd() != pCurrwnd)
     {
      m_bMouseIn = false;
      ShowWindow(SW_HIDE);
     }
     

     break;
    }
   }
   
  } 
  break; //WM_MOUSEMOVE
 }
  
}

void CToolTipWnd::AddTool(CWnd *pWnd, CString strText, COLORREF clrTextColor)
{

 BTOOLINFO *stToolInfo;

 if(!m_ToolPtr.Lookup( pWnd, ( void*& )  stToolInfo))
 {
  stToolInfo = new BTOOLINFO;
  stToolInfo->hwndTool = pWnd->GetSafeHwnd();
  stToolInfo->strToolText = strText;
  if(clrTextColor==NULL)
   stToolInfo->clrToolTextClr = m_clrTextColor;
  else
   stToolInfo->clrToolTextClr = clrTextColor;
 
  m_ToolPtr.SetAt(pWnd, stToolInfo);
 }

}